<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus®">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
 </head>
 <body>
  <input type = "button" onclick = "handle()" value="执行js方法"></button>
 </body>
 <script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
 <script type="text/javascript">
	function handle(){
		var btn;
		btn =[{a:'a',b:'b'},{c:'c',d:'d'}];
		alert(btn);
		btn.unshift({e:'e'});
		alert(btn);
	}

 </script>
</html>
